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Which of the following represents electr...

Which of the following represents electronic configuration of alkali metals.

A

`(n-1)s^(2)p^(6)ns^(1)`

B

`(n-2)s^(2)p^(6)d^(10)ns^(1)`

C

`(n-1)s^(2)p^(6)np^(1)`

D

`(n-1)s^(2)p^(6)d^(10)ns^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
The general electronic configuration of alkali metals is `(n-1)s^(2)p^(6)ns^(1)`
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Knowledge Check

  • Which of the following represents the electronic configuration of d-block elements?

    A
    `(n-1)s^(1-2)nd^(n-10)`
    B
    `(n-1)d^(n-10)ns^(0-2)`
    C
    `(n-1)d^(n-10)ns^(2)np^(4)`
    D
    `(n-1)p^(4)ns^(2)`

  • Which of the following represents electronic mass :

    A
    `9.1 xx 10^(-31) kg. `
    B
    `9.1 xx 10^(-18) kg`.
    C
    `9.1 xx 10^(-1)g`
    D
    `1.59 xx 10^(-10)g`

  • Which of the following is a correct electronic configuration of sodium ?

    A
    2,8
    B
    8,2,1
    C
    2,1,8
    D
    2,8,1

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